Any info on why this message is displaying? It sounds like other users have installed everything successfully, but this strikes me as incredibly odd.
I'm on Mac OS 10.14.6 on a 2018 MacBook Pro.
I just installed Skitch. I downloaded it from the Internet for the first time on this machine, opened the zip file, moved it to Applications, and opened it on my computer by double clicking the file in Applications. Right away I got this message.
Given that in the last few weeks it's come to light that the US Government and companies like Microsoft were the victims of some of the biggest hacks